Heel-calk-forming machine.



M. L. GARDNER.

HEEL GALK FORMING MACHINE APPLIOATION FILED MAR. 23, 1912.

1,078,345, Patented Nov. 11, 1913.

3 SHEETSSHEET 1.

M. L. GARDNER.

HEEL UALK FORMING MACHINE. APPLICATION FILED MAR. 23, 1912.

Patented Nov. 11, 1913.

3 SHEETS-SHEET 2.

M. L. GARDNER.

HEEL OALK FORMING MACHINE.

APPLICATION FILED MAR. 23, 1912.

1,078,345, Patented Nov. 11, 1913.

3 SHEETS-SHBET 3.

17 I v x orrnn s'rarns PATENT ormon.

MYRON L. GARDNER, OF ERIE, PENNSYLVANIA, ASSIGNOR TO ERIE TOE OALK MA- CHINE COMPANY, OF ERIE, PENNSYLVANIA, A GOIPARTNERSHIE COMPOSED OF MYRON L. GARDNER AND HARRY E. WETHERALD.

nnEL cALK-Fomvrme MAGHINE.

Specification of Letters Patent.

Patented Nov. 1 '1, 1913.

Application filed March 23, 1912. Serial No. 685,765.

To all wiiom it may concern:

Be it known that I, MYRoN L. GARDNER, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful Improvements in Heel-CalleForming Machines, of which the following is a specification. a

This invention relates to heel calk forming machines and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

7 The object of the invention is to provide a machine for forming the heel calks of horse shoes. This is ordinarily accomplished by bending up a portion of the horse shoe itself. It is desirable in forming such a calk that the material in the call: be upset so as to strengthen the calk and increase its wearing surface.

One of the principal objects of the invention is to efiect this upsetting of the material as the bend is made so as to enlarge the heel calk.

The invention also contemplates sharpening of the calk on the heel.

The invention is illustrated in the accompanying drawings as follows Figure 1 shows a central section through the the machine with the parts in position prior to making the bend. Fig. 2 is the same section of the machine with the parts shown at the completion of the bend. Fig. 3 shows a section on the line 8-8in Fig. 1. Fig. 1 shows a section of a fragment on the line 4-4t in Fig. 1. Fig. 5 a section on the line 5-5 in Fig. 1.

a 1 marks the base of the machine. This is provided with the upstanding ears 2 and 3. The bending arms 1 and 5 are pivoted between the ears 2 and 3 respectively on the pins 6 and 7 respectively. The arms are provided with the gear teeth 8 so that they swing together. The arms 4: and 5 have the grooves 10 and 11 formed in their upper faces respectively into which the heel 9 of the shoe is placed. The base of the grooves 10 and 11 are in alinement with the parts in their initial position as shown in Fig. 1. A stop 12 is secured into the end of the groove by means of the pin 13. By varying this stop, the length of the calk may be con trolled as desired. A supplemental frame 1 1 is arranged above the frame land connected therewith by four bolts 15, one at each corner of the machine. A. vertical and cylindrically shaped guide opening 16 is provided in the frame 141-, and a plunger 17 is arranged in this guide. The plunger has a rack 18 arranged in it, and the gear 19 meshes this rack; The gear is carried by the shaft 20 arranged in the bearing 21 extending across the frame 1 1. A. lever 22 is provided by means of which the shaft 20 may be rocked so as to force the plunger 17 downwardly. The plunger terminates ina pointed end 17. The operation of these partsis as follows: When the lever 20 is swung, it rotates the gear 19, and this acting on the rack forces the plunger downwardly so as to engage the shoe 9. The pointed end of the plunger grips the shoe with sufficient force to maintain the point engaged in alincment with the axis of the plunger 1'7. As the plunger continues to move, it bends the shoe 9 swinging the arms 4t and 5 downwardly with it. The pivotal movement of the arms 4 and 5 is, of course, at the axis of the pins 6 and 7 so that with this downward movement, the stop 12 swings toward the point 17*, and this movement of the stop toward the point 1'? upsets the material of the shoe 9 between the point 17 and the stop 12, thus materially thickening or upsetting the heel 29 thus formed. The clownward movement of the plunger is continued until the parts reach the posit-ion shown in Fig. 2. It will be noted that the faces of the plunger at each side of the point 17 are at angles to each other so that at the completion of the movement, the calk is at substantially a right angle to the heel of the shoe. This crowding of the shoe between the bottoms of the grooves 10 and 11 and the arms 1 and 5 tends to lock these in the position shown in Fig. 2. In order to jar the shoe loose, I have provided a cam lug 24 on the extension 23 on the arm 4 in the path of a lug 25 on the lever 22 so that when the lever is swung back to its initial position, as shown in Fig. 1, it contacts the lug 24: and starts the upward movement of the arms 1 and 5. The weight of the extension 23 is sufficient to hold the parts normally in the position shown in Fig. 1.

It is often desirable to sharpen the heel call: as formed. To accomplish this purpose with practically the same mechanism, I provide the die 26 with the cutting point 27. The cutting edge 27 is arranged along the edge or the guide opening 16. The plunger 17 is out out at 28 to permit of the insertion of a part of the calk 29. A die 30 is secured by a screw 31 in the upper end of the notch 28 on to the plunger 17. WVhen the plunger is thrown down as shown in Fig. 2, it shears oi a portion of the heel call: 29 the ed e 27 formin one cuttin 7 D t) b edge of the shear and the die 80 the other edge.

hat I claim as new is 1. In a heel call; forming machine, the combination of bending levers extending toward each other from their pivots and ha ing a working surface arranged initially above the pivots; a plunger for operating upon a shoe upon said surface; and a stop on one of said levers for upsetting the material of the heel as the heel is bent.

2. In a heel call: forming machine, the combination of two bending levers; pivotal mountings for said levers, said levers extending from the mountings toward each.

other; a gear connection between said levers; slots in the face of said levers having their bottoms forming a plane initially above the pivots and forming a working surface for the heel of a shoe; a stop for operating on the heel to upset it as it is bent; and a plunger operating 011 the heel or the shoe for bending the calk.

3. In a heel calk forming machine, the combination of a base; levers pivotally mounted on said base and extending toward each other, the said levers having a working surface above their pivots; a stop on one of the levers; a frame above the base and se cured thereto; a plunger carried by said frame and adapted to operate upon the heel of a shoe arranged upon the bending levers to bend the same; and a lever for actuating the plunger. 7

at. In a heel calk forming machine the combination of a base; forming levers pivoted on the base and extending toward each other and having a working surface extending above the pivots; a stop on one of the levers for upsetting the calk as it is bent; a plunger operating upon a shoe upon the levers for bending the same; a lever for actuating the plunger; and a cam carried by one of the forming levers in position to be operated upon by the plunger actuating lever as it is returned to its initial position to start the levers toward their initial posi' tion.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

MYRGN A L. GARDNER. Witnesses C. D. HIeBY, B. M. HARTMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

